Configuring core group IP caching

The caching of name-to-IP address information can be performed
at many levels within the network communication software stack. These levels
include within the operating system, the Java virtual machine, and within
WebSphere Application Server components, such as core groups. Core groups
use caching to reduce the overhead that is associated with IP address name
lookup. You can adjust the interval at which a core group IP cache is cleared.

Before you begin

By default, a core group cache is cleared every 60 minutes. You can
determine the correct time interval for your environment.

About this task

You want to change the length of time that IP addresses are retained
in a core group cache.

Procedure

Change the value that is specified for the IBM_CS_IP_REFRESH_MINUTES
custom property. A core group cache cannot be cleared more frequently
then once a minute.

If the IBM_CS_IP_REFRESH_MINUTES property already exists,
click on the property name and in the Value field, specify the length of time,
in minutes, you want to wait before a core group cache is cleared.

If
this property does not already exist, click New and create it:

In the Name field, specify IBM_CS_IP_REFRESH_MINUTES.

In the Value field specify the length of time, in minutes, that
you want to wait before a core group cache is cleared.